Amtech Systems (ASYS) vs Energy Recovery (ERII)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Amtech Systems (ASYS) has outperformed Energy Recovery (ERII) over the past year, gaining 65.9% versus a loss of 55.7%. Over five years, ASYS leads with a +38.7% price change compared with -65.7% for ERII. Energy Recovery is the larger company by market cap ($349.1 million vs $283.8 million), about 1.2 times the size.
On valuation, Amtech Systems trades at a lower forward P/E (13.0x vs 20.4x for Energy Recovery).
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ASYS | ERII |
|---|---|---|
| Share price | $16.21 | $6.84 |
| Market cap | $283.81M | $349.15M |
| 1-day change | -7.90% | +1.63% |
| YTD return | +29.16% | -49.30% |
| 1-year return | +65.92% | -55.70% |
| 5-year return | +38.67% | -65.70% |
| P/E ratio (TTM) | 60.04 | 26.31 |
| Forward P/E | 12.97 | 20.42 |
| EPS (TTM) | $0.27 | $0.26 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $25.71 | $18.32 |
| 52-week low | $6.75 | $6.60 |
| Distance from 52-week high | -36.95% | -62.66% |
| Analyst consensus | none | none |
| Avg. price target upside | +35.72% | +16.96% |
| Average volume | 362.26K | 943.83K |
| Shares outstanding | 17.51M | 51.04M |
| Employees | 264 | 230 |
| Sector | Technology | Technology |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- ASYS has outperformed ERII by 121.6 percentage points over the past year.
- Amtech Systems trades at a higher earnings multiple (60.0x vs 26.3x trailing P/E).
About Amtech Systems
ASYS stock →Amtech Systems, Inc., together with its subsidiaries, manufactures and sells capital equipment and related consumables for use in fabricating and packaging semiconductor devices in the United States, Canada, Mexico, China, Malaysia, Taiwan, Singapore, the Czech Republic, Austria, Hungary, the United Kingdom, Germany, and internationally. It operates through Thermal Processing Solutions and Semiconductor Fabrication Solutions segments.
Technology · Industrial Machinery/Components · 264 employees
About Energy Recovery
ERII stock →Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the United States, North, South and Latin America, the Middle East, Northern Africa, Asia, and Europe. It operates through Water and Emerging Technologies segments.
Technology · Industrial Machinery/Components · 230 employees
ASYS vs ERII FAQ
Which is bigger, Amtech Systems or Energy Recovery?
Energy Recovery (ERII) is larger, with a market capitalization of $349.15M compared with $283.81M for Amtech Systems (ASYS).
Which stock has performed better over the past year, ASYS or ERII?
ASYS returned +65.92% over the past 12 months, compared with -55.70% for ERII (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ASYS or ERII?
ERII has the lower trailing P/E at 26.3, versus 60.0 for ASYS. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are Amtech Systems and Energy Recovery in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Technology sector.